From our friends at Finn: 

Performance without pretension. The HighTail is the original Finn frame. Built to take whatever the day (and night) can throw at you. Crafted with our featherweight composite material, the HighTail is light enough that you'll forget you're wearing anything at all. Our live wire temple construction allows you to bend the frame snuggly to your head for the perfect fit. And each pair is sold with an extra clear lens at no extra cost, so you can keep moving when the sun goes down. 

Details

• Weight : 32 Grams
• Frame Material : TR90
• Lens Coating : Revo
• Temple and Nosepad Material : TPE
• Frame Front Width : 157mm
• Frome Front Height: 56mm
• Frame Depth : 170mm